New Enclosure Types For "Convertible" Laptops
When is a laptop not a laptop?
When it's a 2-in-1 convertible device or tablet with attached keyboard. To this end you may now encounter devices whose Chassis Type is changed from "Notebook" to "Convertible" after a BIOS update. This change is being driven by the SMBIOS 3.0 Specification which is an industry standard.
So why do we care? In many cases enterprise admins tasked with deploying new PCs will make a distinction between a Laptop and a Desktop and apply different policies or software accordingly. For a laptop, the Win32_SystemEnclosure class might show a value of 9 (Laptop) or 10 (Notebook) for the ChassisTypes field. If these are the only values used with a WMI query to identify a laptop then you may miss some devices.
With the new SMBIOS 3.0 Specification you would want to add the following:
- 30 - Tablet
- 31 - Convertible
- 32 - Detachable
If you need to check the chassis type of a system you can run the following PowerShell command:
Note: It has been noted that Windows 7 may not recognize the new values and will return a value of 2 ("Unknown"). So if you still are using Windows 7 you may need to take this into account.